This attribute records the number of subnet packets discarded at the
sink Vc due to the Vc segmentation and combination protocol error.
Usually, this occurs when the subnet discards packets and thus this
statistics can be used to guest the number of subnet packets that are
not delivered to the Vc. It cannot be used as an actual measure
because some subnet packets may have been delivered to Vc but
have to be discarded because these are partial packets to a frame in
which some other partial packets have not been properly delivered
to Vc